diff --git a/Gemfile.lock b/Gemfile.lock
index d90c188..aab6601 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -55,7 +55,7 @@ GEM
       byebug (~> 11.0)
       pry (>= 0.13, < 0.15)
     racc (1.8.1)
-    rack (2.2.14)
+    rack (2.2.20)
     rainbow (3.1.1)
     redis (5.3.0)
       redis-client (>= 0.22.0)